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  5. Area Code 770

Where Is Area Code 770?

Area code 770 is found in the US state of Georgia. Primarily servicing the city of Marietta (population: 310813), area code 770 covers 31 counties of Georgia.

Located in the Eastern time zone, area code 770 is on the same time as New York, NY.

Area code 770 was brought into effect on August 1, 1995. 770 was split from the parent 404 area code.

Map of Georgia with area code 770 highlighted

Counties in Area Code 770

  • Barrow,
  • Bartow,
  • Butts,
  • Carroll,
  • Cherokee,
  • Clayton,
  • Cobb,
  • Coweta,
  • DeKalb,
  • Douglas,
  • Fayette,
  • Forsyth,
  • Fulton,
  • Gwinnett,
  • Hall,
  • Haralson,
  • Heard,
  • Henry,
  • Jasper,
  • Lamar,
  • Lumpkin,
  • Meriwether,
  • Newton,
  • Oconee,
  • Paulding,
  • Pickens,
  • Pike,
  • Polk,
  • Rockdale,
  • Spalding,
  • Walton.

Most Populous Cities in Area Code 770

City County City Population Time Zone
Marietta Cobb 310,813 EST
Lawrenceville Gwinnett 239,302 EST
Alpharetta Fulton 175,877 EST
Cumming Forsyth 138,714 EST
Gainesville Hall 124,844 EST
Stone Mountain DeKalb 115,136 EST
Duluth Gwinnett 109,113 EST
Douglasville Douglas 106,593 EST
Roswell Fulton 100,771 EST
Kennesaw Cobb 95,251 EST
McDonough Henry 93,087 EST
Lithonia DeKalb 92,155 EST
Woodstock Cherokee 92,134 EST
Buford Gwinnett 88,806 EST
Canton Cherokee 88,223 EST
Covington Newton 87,487 EST
Newnan Coweta 87,121 EST
Conyers Rockdale 84,298 EST
Jonesboro Clayton 83,157 EST
Dallas Paulding 80,730 EST
Norcross Gwinnett 79,837 EST
Snellville Gwinnett 77,962 EST
Smyrna Cobb 77,943 EST
Suwanee Gwinnett 68,043 EST
Stockbridge Henry 67,754 EST

Note: The above list is based off of the top 25 most populous cities in the area code as per 2012 United States Census Bureau estimates.

View all United States Area Codes.

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This page was last updated on July 3, 2015.